What is the pH of a solution that results from diluting 0.30 mol acetic acid (CH3CO2H) and 0.20 mol sodium acetate (NaCH3CO2) with water to a volume of 1.0 L? (Ka of CH3CO2H = 1.8 × 10-5)
A) 4.35
B) 4.57
C) 4.74
D) 4.92
E) 5.14
Correct Answer:
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